Author Topic: running hot after rebuild  (Read 746 times)

Online Guy Wilson

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Re: running hot after rebuild
« Reply #15 on: 23.09. 2018 16:33 »
11/32 is .34 of an inch or 8.7 mm? I think I've now set the mag timing for half that...
So at TDC on the compression stroke I'd back the piston back down the barrel 8.7mm and set the mag timing (while fully advanced) to open the points at this mark...sorry if that sounds obvious, I'm trying too get it 100% straight in my head...

Online Guy Wilson

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running hot after rebuild
« Reply #16 on: 24.09. 2018 07:12 »
I think I've set up TDC on the left hand cylinder and then time the mag to the right hand cylinder.... that might explain a few things...
Guy

Online Greybeard

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Re: running hot after rebuild
« Reply #17 on: 24.09. 2018 09:08 »
11/32 is .34 of an inch or 8.7 mm? I think I've now set the mag timing for half that...
So at TDC on the compression stroke I'd back the piston back down the barrel 8.7mm and set the mag timing (while fully advanced) to open the points at this mark...sorry if that sounds obvious, I'm trying too get it 100% straight in my head...

It's best to back off then go forward to the firing position so backlash in the gears is taken up.

Online Greybeard

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Re: running hot after rebuild
« Reply #18 on: 24.09. 2018 09:14 »
I think I've set up TDC on the left hand cylinder and then time the mag to the right hand cylinder.... that might explain a few things...
Guy

Nah, that won't be a problem; remember both pistons are at the firing position at the same time; just valves are doing their own thing.

Online Rex

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Re: running hot after rebuild
« Reply #19 on: 24.09. 2018 09:45 »
If you've only done ten miles or so on a newly-rebuilt engine then you're unlikely to have gone into the "main jet zone" for any length of time, if at all, so I'd concentrate on timing issues if I were you..

Online Guy Wilson

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running hot after rebuild
« Reply #20 on: 24.09. 2018 16:31 »
Thank you again gents..I retimed the magneto today - correctly this time I believe - I had it advanced by 50% or 4mm.
Planning on a longer run tomorrow to see how it holds together..
The only reason its running at all is because of this forum and I appreciate all the time and attention given freely from around the world..
Guy

Online Guy Wilson

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running hot after rebuild
« Reply #21 on: 25.09. 2018 12:15 »
I managed 55 miles this morning with no real problem and as RDfella rightly predicated, its running al lot cooler now..thank you all gents!
I'll post some photos of the DGR run next week hopefully with the bike running and not me repairing it by the side of the road..although that's also part of joy of old bikes...
Guy

Online RichardL

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Re: running hot after rebuild
« Reply #22 on: 25.09. 2018 12:53 »
Guy,

A few of us keep trying to expand forum interest in the DGR. We have formed a forum team as part of this, but also for the camaraderie. Unless you're using a pseudonym (though, I think I know all of them) I don't see you there. Please consider joining the team. Your individual fundraising remains in your name and is also added to the team total (no cost tou you, of course). Here is the link:

https://www.gentlemansride.com/team/bsaaa0forum

Richard L.
Plan on signing up for the world-wide 2020 DISTINGUISHED GENTLEMAN'S RIDEon September 27, 2020 (if it's not cancelled and we are free to move about by then). Watch website at https://www.gentlemansride.com for details.

Online Guy Wilson

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Re: running hot after rebuild
« Reply #23 on: 25.09. 2018 12:59 »

Online Angus

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Re: running hot after rebuild
« Reply #24 on: 25.09. 2018 13:51 »
Hi Guy

I hate this DGR site.

I think that is the ride you are in, you can also be in a team which does not affect the ride you are in. I am on the Bury St Edmunds ride and in the forum team
1961 A7 since 1976
1960 A10 Gold Flash Super Profile Bike
1958 Matchless G80 Project
1952 Norton Model 7 Plunger
1950 T100

Online RichardL

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Re: running hot after rebuild
« Reply #25 on: 25.09. 2018 13:55 »
Plan on signing up for the world-wide 2020 DISTINGUISHED GENTLEMAN'S RIDEon September 27, 2020 (if it's not cancelled and we are free to move about by then). Watch website at https://www.gentlemansride.com for details.